Registration Dossier
Registration Dossier
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EC number: 271-898-1 | CAS number: 68611-64-3
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2008-10-22 - 2008-12-11
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The GLP study was conducted according to an internationally accepted guideline. All study parameters are given in detail.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- plate method
Test material
- Reference substance name:
- Urea, reaction products with formaldehyde
- EC Number:
- 271-898-1
- EC Name:
- Urea, reaction products with formaldehyde
- Cas Number:
- 68611-64-3
- Molecular formula:
- not available
- IUPAC Name:
- Urea, reaction products with formaldehyde
- Test material form:
- other: liquid
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 71.73 mN/m
- Temp.:
- 19.9 °C
- Conc.:
- 1 g/L
Applicant's summary and conclusion
- Conclusions:
- The surface tension of an aqueous solution of Weikoform (urea, reaction product with formaldehyde) was determined as 71,73 ± 0.09 mN/m at 19.9 °C. Three measurements were performed for verification. No significant changes and thus no significant dependence on time and temperature was observed.
As these values were higher than 60 mN/m Weikoform (urea, reaction product with formaldehyde) is not surface active. - Executive summary:
The surface tension of an aqueous solution of Weikoform (urea, reaction product with formaldehyde) was determined as 71,73 ± 0.09 mN/m at 19.9 °C. Three measurements were performed for verification. No significant changes and thus no significant dependence on time and temperature was observed.
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